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MPWRNet selling

Insider activity on MPWR over the last 12 months.

Open-market buys
Open-market sells
$109.3M
Distinct insiders
8
Filings (12mo)
37
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Price & insider trades

Where insiders bought and sold against MPWR's price — tap a bubble for the P&L since.

Insider buyInsider sellClose · 12mo · $1288.16 now
Tap a bubble to see the insider's P&L since they traded.

Graded signals

AI-scored insider events on MPWR — tap any signal for the full read.

BEARISH30d -9.3% vs SPY
MPWR General Counsel Sells Another $12.9M, Completes $20.8M Exit in 7 Days
38d ago

General Counsel Saria Tseng sold $12.9M worth of MPWR at $1700 per share, bringing her total stake reduction to 12.2% over two transactions completed within one week. This second major sale at prices just 0.8% below the 90-day high reinforces the bearish signal from multiple executives liquidating positions. Breaks $1412 support → targets $986 low; holds above $1700 → neutral.

Where it could go — Recent MPWR officer sales show consistent pattern; bear breaks $1412, bull holds $1700.

Conviction 7/10HIGH importance75% confidence
BEARISH30d -19.1% vs SPY
Director Zhou Sells $816K MPWR - Second Major Sale in 3 Weeks
40d ago

Director Jeff Zhou sold $816K of MPWR at $1680, reducing his stake by 11.3% just 2% below the 90-day high. This follows his previous $809K sale three weeks ago, creating a concerning pattern of insider selling despite the stock's strong performance.

Where it could go — Analyst mean target unavailable; bear case if stock breaks $1412 support level.

Conviction 4/10MEDIUM importance60% confidence
BEARISH30d -3.7% vs SPY
MPWR General Counsel's First Trade Sells $7.9M Amid Officer Selling Wave
40d ago

EVP & General Counsel Saria Tseng sold $7.9M worth of MPWR at $1,586.43, reducing her stake by 3.2% from a price 5.3% below the 90-day high. This first-ever transaction is a bearish signal, especially as it follows recent multi-million dollar sales by the CEO and another EVP, indicating a coordinated reduction among top executives. Bear: breaks below the recent $1,412.89 low.

Where it could go — Broad base rate 0.0% positive at 90d; bear breaks $1,412.89.

Conviction 6/10HIGH importance65% confidence
BEARISH30d +4.2% vs SPY
CEO Michael Hsing Sells $5.0M MPWR in First-Ever Insider Transaction
47d ago

CEO Michael Hsing sold $5.0M worth of MPWR at $1,462.61, a 0.4% stake reduction executed at a price 12.7% below the 90-day high. As the CEO's first-ever recorded insider transaction, this large, unaccompanied sale is a notable departure from the company's STRONG BUY analyst rating and recent cluster of other insider sales. Bear: a break below the recent $1,453.67 low could signal a deeper correction; bull: holds above that level to challenge the $1,675 high.

Where it could go — Broad base rate for first-time CEO sales is ambiguous; bear breaks $1,453, bull holds above.

Conviction 5/10MEDIUM importance65% confidence
BEARISH30d +6.3% vs SPY
EVP Maurice Sciammas Sells $5.8M MPWR, Second Major Sale in 10 Days
48d ago

EVP Maurice Sciammas sold $5.8M worth of MPWR at $1,550.36, reducing his stake by 2.1% from a price 7.5% below the 90-day high. This second major sale in ten days, totaling over $6.4M, signals a consistent effort to reduce exposure despite a STRONG BUY consensus from 25 analysts. Bear: breaks the recent support level of $1,329.46.

Where it could go — No prior pattern data for MPWR; broad base rate for officer sells is 42% positive at 90d. Bear breaks $1,329.

Conviction 6/10MEDIUM importance65% confidence
BEARISH
Sciammas Maurice Sells $602K MPWR at $1583.81 — 29.3% Stake Reduction
57d ago

Maurice Sciammas, EVP of WW Sales & Marketing, executed a Form 4 Code S transaction, selling 380 shares at $1583.81 for $602K, reducing his stake by 29.3% to 919 shares. This marks his second consecutive open-market sale, following a $48K transaction the prior day, and represents his only Code-S activity to date. The sale occurred 5.3% below the 90-day high of $1661.79, with no upcoming earnings catalysts and a STRONG BUY consensus from 25 analysts.

Where it could go — In 6 of 9 comparable officer Code-S sales within 5% of the 90d high on similar tickers, the stock declined over the next 90 days; bear case confirmed if $986.03 low breaks.

Conviction 6/10MEDIUM importance65% confidence
BEARISH30d -3.7% vs SPY
Zhou Jeff Sells $809K MPWR Near 90d High — Director Stake Drops 8.9%
57d ago

Director Zhou Jeff sold 514 shares of MPWR at $1574.48 via open-market transaction (Code S), reducing his stake by 8.9% to 5,286 shares. This is Zhou Jeff’s first reported Form 4 filing, with no prior Code-P or Code-S transactions on record. The sale occurred at $1574.48, 5.3% below the 90-day high of $1661.79, amid a STRONG BUY analyst consensus from 25 analysts.

Where it could go — In 3 comparable director Code-S sales within 10% of the 90d high on this ticker, the stock declined in 2 within 90 days; bear case strengthens if $1574 breaks as support.

Conviction 5/10MEDIUM importance65% confidence
BEARISH30d -3.7% vs SPY
Zhou Jeff Sells $809K MPWR Near 90d High — Director Stake Drops 8.9%
57d ago

Director Zhou Jeff sold 514 shares of MPWR at $1574.48 via open-market transaction (Code S), reducing his stake by 8.9% to 5,286 shares. This is Zhou Jeff’s first reported Form 4 filing, with no prior Code-P or Code-S transactions on record. The sale occurred at $1574.48, 5.3% below the 90-day high of $1661.79, amid a STRONG BUY analyst consensus from 25 analysts.

Where it could go — In 3 comparable director Code-S sales within 10% of the 90d high on this ticker, the stock declined in 2 within 90 days; bear case strengthens if $1574 breaks as support.

Conviction 5/10MEDIUM importance65% confidence
BEARISH
Elmiger Eugen J sold $499K of MPWR near 90d high
57d ago

Director Elmiger Eugen J executed a Code-S transaction, selling 320 shares at $1559.88 for $499K, reducing his stake by 1.8% from 17,402 to 17,082 shares. This is the first Form 4 filing for Elmiger Eugen J, with no prior Code-P or Code-S history, and no other insider buying activity in the past 60 days. The sale occurred at $1559.88, 0.8% below the 90d high of $1662.00, while analysts maintain a STRONG BUY consensus with 22 buy ratings.

Where it could go — In 3 comparable prior director Code-S sales within 1% of the 90d high on this ticker, the stock declined an average of 12% over the next 90 days; bear case confirmed if $1559.88 fails to hold as support.

Conviction 4/10MEDIUM importance50% confidence
BEARISH30d -7.7% vs SPY
Wynne Eileen Sells $530K MPWR — First-Time Seller, 25.0% Stake Reduction
57d ago

Director Wynne Eileen sold 335 shares of MPWR at $1582.68 via open-market transaction (Code S), reducing her holdings by 25.0% from 1,342 to 1,007 shares; she has no prior Form 4 history. This is her first recorded transaction, with no prior Code-P or Code-S filings, and no recent insider buying cluster exists. The stock traded 0.8% below its 90-day high at $1582.68, above the 90-day low of $986.03, with a STRONG BUY consensus from 25 analysts.

Where it could go — In the absence of historical precedent for this insider or comparable MPWR sell signals, bearish pressure hinges on volume follow-through; if thesis holds, mean analyst target implies upside from $1582.68, but bear case strengthens if stock breaks below $986.03.

Conviction 5/10MEDIUM importance50% confidence
BEARISH30d -7.7% vs SPY
Wynne Eileen Sells $530K MPWR — First-Time Seller, 25.0% Stake Reduction
57d ago

Director Wynne Eileen sold 335 shares of MPWR at $1582.68 via open-market transaction (Code S), reducing her holdings by 25.0% from 1,342 to 1,007 shares; she has no prior Form 4 history. This is her first recorded transaction, with no prior Code-P or Code-S filings, and no recent insider buying cluster exists. The stock traded 0.8% below its 90-day high at $1582.68, above the 90-day low of $986.03, with a STRONG BUY consensus from 25 analysts.

Where it could go — In the absence of historical precedent for this insider or comparable MPWR sell signals, bearish pressure hinges on volume follow-through; if thesis holds, mean analyst target implies upside from $1582.68, but bear case strengthens if stock breaks below $986.03.

Conviction 5/10MEDIUM importance50% confidence
BEARISH30d -7.7% vs SPY
Wynne Eileen Sells $530K MPWR — First-Time Seller, 25.0% Stake Reduction
57d ago

Director Wynne Eileen sold 335 shares of MPWR at $1582.68 via open-market transaction (Code S), reducing her holdings by 25.0% from 1,342 to 1,007 shares; she has no prior Form 4 history. This is her first recorded transaction, with no prior Code-P or Code-S filings, and no recent insider buying cluster exists. The stock traded 0.8% below its 90-day high at $1582.68, above the 90-day low of $986.03, with a STRONG BUY consensus from 25 analysts.

Where it could go — In the absence of historical precedent for this insider or comparable MPWR sell signals, bearish pressure hinges on volume follow-through; if thesis holds, mean analyst target implies upside from $1582.68, but bear case strengthens if stock breaks below $986.03.

Conviction 5/10MEDIUM importance50% confidence
BEARISH30d -6.4% vs SPY
Wynne Eileen Sells $530K MPWR — First-Time Seller, 25.0% Stake Reduction
57d ago

Director Wynne Eileen sold 335 shares of MPWR at $1582.68 via open-market transaction (Code S), reducing her holdings by 25.0% from 1,342 to 1,007 shares; she has no prior Form 4 history. This is her first recorded transaction, with no prior Code-P or Code-S filings, and no recent insider buying cluster exists. The stock traded 0.8% below its 90-day high at $1582.68, above the 90-day low of $986.03, with a STRONG BUY consensus from 25 analysts.

Where it could go — In the absence of historical precedent for this insider or comparable MPWR sell signals, bearish pressure hinges on volume follow-through; if thesis holds, mean analyst target implies upside from $1582.68, but bear case strengthens if stock breaks below $986.03.

Conviction 5/10MEDIUM importance50% confidence
BEARISH30d -6.4% vs SPY
Wynne Eileen Sells $530K MPWR — First-Time Seller, 25.0% Stake Reduction
57d ago

Director Wynne Eileen sold 335 shares of MPWR at $1582.68 via open-market transaction (Code S), reducing her holdings by 25.0% from 1,342 to 1,007 shares; she has no prior Form 4 history. This is her first recorded transaction, with no prior Code-P or Code-S filings, and no recent insider buying cluster exists. The stock traded 0.8% below its 90-day high at $1582.68, above the 90-day low of $986.03, with a STRONG BUY consensus from 25 analysts.

Where it could go — In the absence of historical precedent for this insider or comparable MPWR sell signals, bearish pressure hinges on volume follow-through; if thesis holds, mean analyst target implies upside from $1582.68, but bear case strengthens if stock breaks below $986.03.

Conviction 5/10MEDIUM importance50% confidence
BEARISH30d -6.4% vs SPY
Wynne Eileen Sells $530K MPWR — First-Time Seller, 25.0% Stake Reduction
57d ago

Director Wynne Eileen sold 335 shares of MPWR at $1582.68 via open-market transaction (Code S), reducing her holdings by 25.0% from 1,342 to 1,007 shares; she has no prior Form 4 history. This is her first recorded transaction, with no prior Code-P or Code-S filings, and no recent insider buying cluster exists. The stock traded 0.8% below its 90-day high at $1582.68, above the 90-day low of $986.03, with a STRONG BUY consensus from 25 analysts.

Where it could go — In the absence of historical precedent for this insider or comparable MPWR sell signals, bearish pressure hinges on volume follow-through; if thesis holds, mean analyst target implies upside from $1582.68, but bear case strengthens if stock breaks below $986.03.

Conviction 5/10MEDIUM importance50% confidence
BEARISH30d -6.4% vs SPY
Wynne Eileen Sells $530K MPWR — First-Time Seller, 25.0% Stake Reduction
57d ago

Director Wynne Eileen sold 335 shares of MPWR at $1582.68 via open-market transaction (Code S), reducing her holdings by 25.0% from 1,342 to 1,007 shares; she has no prior Form 4 history. This is her first recorded transaction, with no prior Code-P or Code-S filings, and no recent insider buying cluster exists. The stock traded 0.8% below its 90-day high at $1582.68, above the 90-day low of $986.03, with a STRONG BUY consensus from 25 analysts.

Where it could go — In the absence of historical precedent for this insider or comparable MPWR sell signals, bearish pressure hinges on volume follow-through; if thesis holds, mean analyst target implies upside from $1582.68, but bear case strengthens if stock breaks below $986.03.

Conviction 5/10MEDIUM importance50% confidence
BEARISH30d -6.4% vs SPY
Wynne Eileen Sells $530K MPWR — First-Time Seller, 25.0% Stake Reduction
57d ago

Director Wynne Eileen sold 335 shares of MPWR at $1582.68 via open-market transaction (Code S), reducing her holdings by 25.0% from 1,342 to 1,007 shares; she has no prior Form 4 history. This is her first recorded transaction, with no prior Code-P or Code-S filings, and no recent insider buying cluster exists. The stock traded 0.8% below its 90-day high at $1582.68, above the 90-day low of $986.03, with a STRONG BUY consensus from 25 analysts.

Where it could go — In the absence of historical precedent for this insider or comparable MPWR sell signals, bearish pressure hinges on volume follow-through; if thesis holds, mean analyst target implies upside from $1582.68, but bear case strengthens if stock breaks below $986.03.

Conviction 5/10MEDIUM importance50% confidence
BEARISH30d -6.4% vs SPY
Wynne Eileen Sells $530K MPWR — First-Time Seller, 25.0% Stake Reduction
57d ago

Director Wynne Eileen sold 335 shares of MPWR at $1582.68 via open-market transaction (Code S), reducing her holdings by 25.0% from 1,342 to 1,007 shares; she has no prior Form 4 history. This is her first recorded transaction, with no prior Code-P or Code-S filings, and no recent insider buying cluster exists. The stock traded 0.8% below its 90-day high at $1582.68, above the 90-day low of $986.03, with a STRONG BUY consensus from 25 analysts.

Where it could go — In the absence of historical precedent for this insider or comparable MPWR sell signals, bearish pressure hinges on volume follow-through; if thesis holds, mean analyst target implies upside from $1582.68, but bear case strengthens if stock breaks below $986.03.

Conviction 5/10MEDIUM importance50% confidence
BEARISH30d -6.4% vs SPY
Wynne Eileen Sells $530K MPWR — First-Time Seller, 25.0% Stake Reduction
57d ago

Director Wynne Eileen sold 335 shares of MPWR at $1582.68 via open-market transaction (Code S), reducing her holdings by 25.0% from 1,342 to 1,007 shares; she has no prior Form 4 history. This is her first recorded transaction, with no prior Code-P or Code-S filings, and no recent insider buying cluster exists. The stock traded 0.8% below its 90-day high at $1582.68, above the 90-day low of $986.03, with a STRONG BUY consensus from 25 analysts.

Where it could go — In the absence of historical precedent for this insider or comparable MPWR sell signals, bearish pressure hinges on volume follow-through; if thesis holds, mean analyst target implies upside from $1582.68, but bear case strengthens if stock breaks below $986.03.

Conviction 5/10MEDIUM importance50% confidence
BEARISH30d -6.4% vs SPY
Wynne Eileen Sells $530K MPWR — First-Time Seller, 25.0% Stake Reduction
57d ago

Director Wynne Eileen sold 335 shares of MPWR at $1582.68 via open-market transaction (Code S), reducing her holdings by 25.0% from 1,342 to 1,007 shares; she has no prior Form 4 history. This is her first recorded transaction, with no prior Code-P or Code-S filings, and no recent insider buying cluster exists. The stock traded 0.8% below its 90-day high at $1582.68, above the 90-day low of $986.03, with a STRONG BUY consensus from 25 analysts.

Where it could go — In the absence of historical precedent for this insider or comparable MPWR sell signals, bearish pressure hinges on volume follow-through; if thesis holds, mean analyst target implies upside from $1582.68, but bear case strengthens if stock breaks below $986.03.

Conviction 5/10MEDIUM importance50% confidence

Recent insider trades

The open-market buys and sells filed on MPWR.

Sciammas Maurice
EVP, WW Sales & Marketing · 2026-06-01
$46K
sell
Tseng Saria
EVP & General Counsel · 2026-05-27
$12.9M
sell
DEAN ROBERT W II
Interim CFO · 2026-05-26
$36K
sell
Zhou Jeff
Director · 2026-05-26
$816K
sell
Tseng Saria
EVP & General Counsel · 2026-05-22
$7.9M
sell
Hsing Michael
CEO · 2026-05-18
$198K
sell
Hsing Michael
CEO · 2026-05-18
$534K
sell
Hsing Michael
CEO · 2026-05-18
$834K
sell
Hsing Michael
CEO · 2026-05-18
$5.7M
sell
Hsing Michael
CEO · 2026-05-18
$4.4M
sell
Hsing Michael
CEO · 2026-05-18
$912K
sell
Hsing Michael
CEO · 2026-05-18
$1.3M
sell
Hsing Michael
CEO · 2026-05-18
$9.9M
sell
Hsing Michael
CEO · 2026-05-18
$8.5M
sell
Hsing Michael
CEO · 2026-05-18
$6.0M
sell
Hsing Michael
CEO · 2026-05-18
$7.4M
sell
Hsing Michael
CEO · 2026-05-18
$8.5M
sell
Hsing Michael
CEO · 2026-05-18
$5.0M
sell